WO2005049215A1 - Spark induction power conditioner for high tension physical separators - Google Patents
Spark induction power conditioner for high tension physical separators Download PDFInfo
- Publication number
- WO2005049215A1 WO2005049215A1 PCT/FI2004/000699 FI2004000699W WO2005049215A1 WO 2005049215 A1 WO2005049215 A1 WO 2005049215A1 FI 2004000699 W FI2004000699 W FI 2004000699W WO 2005049215 A1 WO2005049215 A1 WO 2005049215A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- separator
- connectable
- high voltage
- electrodes
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
- B03C3/68—Control systems therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
Definitions
- the first spark induction power conditioner may be connected in series between a high voltage power source and a lifting electrode of an electrostatic separator.
- FIGS. 12-16 are schematic block diagrams showing alternate embodiments for connecting at least one spark induction power conditioner to a plurality of plate electrodes commonly employed by a triboelectric plate separator;
- FIGS. 17-18 are graphs showing the TiO2 and ZrO2 recovery per weight recovery of non-conducting particles
- the phrase physical separators includes the above-noted electrostatic and triboelectric separators and magnetic separators, as well as high voltage separating equipment, i.e., any solid particle separators employing high voltage methods to separate mixtures of solid particles.
- the power conditioner 10 induces a predetermined large amplitude, high frequency current ripple to the second electrode 14 for creating a fluctuating voltage and fluctuating electrostatic field and maintaining current flow continuous through the gap without reversal of polarity.
- a current ripple is an extensive non sine wave ripple, characteristic of a D.C. voltage.
- the fluctuating electrostatic field adds a "jigging" action to the electrode system.
- the fluctuating field induces pulsating forces on the specific particles within the bed or field of particulate materials. This has the benefit of freeing trapped particles that would not be freed if the forces were constant
- an electrostatic separator may include a rotating belt 43 that receives particulate materials 42 from an overhead bin, for example, and directs such materials towards at least one static lifting electrode 50 connected in series to a power conditioner 10. Similar to the embodiment shown in FIG. 19, the power conditioner 10 induces a fluctuating voltage field that more effectively separates the conducting and non-conducting particulate materials with the aide of a conventional splitter 41 (not shown), positioned downstream of the electrodes 50.
- FIG. 21 shows a magnetic separator that has been retrofitted with the power conditioner 10 of the present invention. It is well known in the industry that magnetic separators separate magnetic particles from non-magnetic particles via a permanent magnetic array 53. However, such separators often do not effectively remove fine non-magnetic particles from a rotating surface because such particles lack sufficient mass and therefore adhere to the rotating belt due to triboelectrification.
- an ionizing field can be introduced to the magnetic separator, as disclosed in applicants' pending patent application, referenced above.
- a magnetic separator may employ a rotating belt 43, which receives particulate materials 42 from a bin located thereabove.
- An idler drum 54 and a rotating drum 55 rotate the belt 43.
- One or more static electrodes 50,51 and a corona electrode 52 are spaced from the drums 54, 55, as clearly shown in FIG. 21.
- Such electrodes 50, 51 and 52 may be connected to one or more power conditioners 10, in accordance with the present invention.
- the static electrodes 50, 51 and the corona electrode 52 may be connected to one or more power conditioners 10, similar to the configurations shown in FIGS. 8-11, for example, as discussed herein.
- the D.C. altering device may include a second spark induction power conditioner 60 spaced from the first spark induction power conditioner 10 and connected in series with a corona wire electrode.
- a second power conditioner 60 preferably includes a third electrode 30 connectable to a high voltage D.C. power source 40 and a fourth electrode 31 spaced from the third electrode 30 and forming a discharging gap therebetween.
- the fourth electrode 31 may be connected to a predetermined section of an electrostatic separator 25 with at least one of the electrodes 30, 31 being selectively positionable for altering spatial distance between same.
- a power conditioner 10 may be connected in series between a plurality of high voltage power sources 15, 40 and a plurality of positive or negative plate electrodes 34, 41 and 35, 42, respectively.
- the fluctuating voltage fields associated with the first and second spark induction conditioners 10, 60 are independently adjustable and not in phase.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electrostatic Separation (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2004291359A AU2004291359B2 (en) | 2003-11-21 | 2004-11-19 | Spark induction power conditioner for high tension physical separators |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/718,844 | 2003-11-21 | ||
US10/718,844 US7045734B2 (en) | 2003-11-21 | 2003-11-21 | Spark induction power conditioner for high tension physical separators |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005049215A1 true WO2005049215A1 (en) | 2005-06-02 |
Family
ID=34619932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI2004/000699 WO2005049215A1 (en) | 2003-11-21 | 2004-11-19 | Spark induction power conditioner for high tension physical separators |
Country Status (4)
Country | Link |
---|---|
US (1) | US7045734B2 (en) |
AU (1) | AU2004291359B2 (en) |
WO (1) | WO2005049215A1 (en) |
ZA (1) | ZA200603966B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008145251A1 (en) * | 2007-05-31 | 2008-12-04 | Marcel Op De Laak | Method and device for precipitating impurities from a stream of gas |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7731246B2 (en) * | 2006-09-29 | 2010-06-08 | Varco I/P, Inc. | Pipe coupling system |
US20090008929A1 (en) * | 2007-07-05 | 2009-01-08 | David Vernon Person | Pipe coupling spacer insert |
AU2009209037B2 (en) * | 2008-02-01 | 2012-08-30 | Eriez Manufacturing Co. | High-tension electrostatic separator lifting electrode |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2300324A (en) * | 1940-04-27 | 1942-10-27 | Sturtevant Mill Co | Method of and mechanism for classifying finely comminuted material |
US5161696A (en) * | 1991-04-19 | 1992-11-10 | Washington Mills Electro Minerals Corp. | Method and apparatus for separating shapes of abrasive grains |
GB2332382A (en) * | 1997-12-17 | 1999-06-23 | Tetra Laval Holdings & Finance | Method and apparatus for separating particles |
US5938041A (en) * | 1996-10-04 | 1999-08-17 | University Of Kentucky Research Foundation | Apparatus and method for triboelectrostatic separation |
US6011229A (en) * | 1996-11-22 | 2000-01-04 | Kali Und Salz Gmbh | Electrostatic separator for classifying triboelectrically charged substance mixtures |
US6064022A (en) * | 1998-06-12 | 2000-05-16 | Outokumpu Oyj | Electrostatic separation of particles |
WO2002000353A1 (en) * | 2000-06-23 | 2002-01-03 | Outokumpu Oyj | Electrostatic separation apparatus and method using box-shaped electrodes |
WO2003084667A1 (en) * | 2002-04-10 | 2003-10-16 | Outokumpu Oyj | High-tension electrostatic classifier and separator, and associated method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3739554A (en) * | 1971-12-01 | 1973-06-19 | Gen Electric | Air filter utilizing alternating current electric fields |
US5755333A (en) * | 1995-12-22 | 1998-05-26 | University Of Kentucky Research Foundation | Method and apparatus for triboelectric-centrifugal separation |
-
2003
- 2003-11-21 US US10/718,844 patent/US7045734B2/en not_active Expired - Fee Related
-
2004
- 2004-11-19 WO PCT/FI2004/000699 patent/WO2005049215A1/en active Application Filing
- 2004-11-19 AU AU2004291359A patent/AU2004291359B2/en not_active Ceased
-
2006
- 2006-05-17 ZA ZA200603966A patent/ZA200603966B/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2300324A (en) * | 1940-04-27 | 1942-10-27 | Sturtevant Mill Co | Method of and mechanism for classifying finely comminuted material |
US5161696A (en) * | 1991-04-19 | 1992-11-10 | Washington Mills Electro Minerals Corp. | Method and apparatus for separating shapes of abrasive grains |
US5938041A (en) * | 1996-10-04 | 1999-08-17 | University Of Kentucky Research Foundation | Apparatus and method for triboelectrostatic separation |
US6011229A (en) * | 1996-11-22 | 2000-01-04 | Kali Und Salz Gmbh | Electrostatic separator for classifying triboelectrically charged substance mixtures |
GB2332382A (en) * | 1997-12-17 | 1999-06-23 | Tetra Laval Holdings & Finance | Method and apparatus for separating particles |
US6064022A (en) * | 1998-06-12 | 2000-05-16 | Outokumpu Oyj | Electrostatic separation of particles |
WO2002000353A1 (en) * | 2000-06-23 | 2002-01-03 | Outokumpu Oyj | Electrostatic separation apparatus and method using box-shaped electrodes |
WO2003084667A1 (en) * | 2002-04-10 | 2003-10-16 | Outokumpu Oyj | High-tension electrostatic classifier and separator, and associated method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008145251A1 (en) * | 2007-05-31 | 2008-12-04 | Marcel Op De Laak | Method and device for precipitating impurities from a stream of gas |
US8308846B2 (en) | 2007-05-31 | 2012-11-13 | Woco Industrietechnik Gmbh | Method and device for precipitating impurities from a stream of gas |
Also Published As
Publication number | Publication date |
---|---|
US20050121369A1 (en) | 2005-06-09 |
US7045734B2 (en) | 2006-05-16 |
AU2004291359A1 (en) | 2005-06-02 |
ZA200603966B (en) | 2007-05-30 |
AU2004291359B2 (en) | 2010-03-25 |
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